Crosstalk Model Of A Deformable-Mirror-Based Infrared Scene Projector

    Authors

    K. J. Barnard; G. D. Boreman;D. R. Pape

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Opt. Eng.

    Keywords

    INFRARED TECHNOLOGY; INFRARED SCENE PROJECTION; DEFORMABLE MIRRORS; SPATIAL LIGHT MODULATORS; PARTIAL COHERENCE; DEVICE; Optics

    Abstract

    An analytical model for crosstalk is developed for an infrared scene projector that utilizes a deformable-mirror device as an infrared spatial light modulator. Partial-coherence effects that result from the physical layout of the projection system are included. Crosstalk is determined by defining a crosstalk ratio in the projected image. Crosstalk-ratio calculations are carried out for monochromatic and blackbody projection sources over the 3- to 5-mum wavelength band. The results predict crosstalk ratios of 260:1, 1200:1, and 2400:1 for deformable-mirror pixels of 50, 100, and 150 mum when a blackbody source is used in the projection system. Crosstalk performance is improved at shorter wavelengths and for larger deformable-mirror pixels. The results of a proof-of-principle experiment are included to verify the feasibility of a deformable-mirror device in the projection system.

    Journal Title

    Optical Engineering

    Volume

    33

    Issue/Number

    1

    Publication Date

    1-1-1994

    Document Type

    Article

    Language

    English

    First Page

    140

    Last Page

    149

    WOS Identifier

    WOS:A1994MR61400020

    ISSN

    0091-3286

    Share

    COinS